You may already, or may not yet know my game Star Temple TD. It is my first publicly released, more or less serious game. It is a sci-fi themed tower defence, with a bit of unique physics and intense graphics. It is a flash game, with it’s own website, and a server-database, so you can access your data and achievements from anywhere.
I had the MMO idea long before Star Temple TD, right after my very first flash game, which was never released. Star Temple TD started out as a little side project, with the engine having been largely done within a matter of a few months. Then i lost motivation, and dropped it for a while, before showing it to a few class mates, who liked it. After a long list of events, the decision was made, to extend it from a stand-alone flash game into a full website, where users have to register and such. Thus, it became a testbed for a lot of technologies, and a huge practice project, partly paving the way for the MMO.
If you already know the game, some of the ships, and races are likely to reappear in the MMO, with appropriately updetailed graphics, and proper backstory of course.
Link to the game: Star Temple TD